On 15 Dec 2014, at 12:42, Jean-Daniel Dupas <mail...@xenonium.com> wrote:
> I found only 5 classes that does not responds to isProxy and they are all 
> internal classes, so real code will never have to deal with instances of such 
> classes.

Maxthon is iterating over the classes in the system. Even internal classes to 
the OS show up in that list, so I really don't see how he would *not* have to 
be able to at least deal with their presence.

Apart from completely re-thinking his approach. E.g. NSImageRep, AFAIK, simply 
has each image representation subclass add itself to an NSArray from its 
+initialize method. I'd think that'd be less fragile than walking the entire 
class list.

-- Uli
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